Type or matrix.



F. P. WILSON.

TYPE OR MATRIX.

APPLICATION FILED MAR. 23, 1914.

Patented. Feb. 23, 1915.

BERG/US, F.

WILSON, OF BROOKLYN, NEW YORK, ASSIGNOR TO MERGEN'IHALER LINOTYIEcoiviraivv, A conrona'rron or new. YORK.

TYPE 0R MATRIX.

To all whom it may concern: 7

Be it known that I, Fnneos F. WiLsoN, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Type or Matrices, ofwhich the following is a specification, reference beinghad therein tothe accompanying drawing.

My invention relates to type or matrices for typographical machines,such as linotype machines of the general organization represented inLetters Patent of the United States, No. 6,532, to O. Mergenthaler. Inmachines of this class, the matrices are released from their magazine bythe manipulation of a keyboard mechanism, and are then assembled in lineand presented to a mold, wherein the slug or linotype is cast. Afterthis, the matrices are distributed and restored to the magazine fromwhich they started.

It frequently happens, and particularly in the case of very large ordisplay matrices, that their weight, and consequent impact whenarrested, causes wear of the machine parts and of the matricesthemselves. The problem has been to lighten them suffi ciently, but atthe same time to leave sup port for the wall containing the formativecharacter, so that when the matrices are as sembled in line, they willretain the dimensions required, and the characters cast therefrom willbe of the exact height desired. To this end, they are ordinarilyconstructed in skeleton form, or more specifically, longitudinal cuts orgrooves are made in them to remove as much metal as possible. ()therdifliculties consequently arise, and particularly in that not only dothe walls spring inwardly, due to the cutting or milling of the grooves,but also their strength is diminished. I therefore provide theseskeleton matrices with means for reinforcing the outer walls, andpreferably by inserting strengthening members in the cuts or grooves inthe rear of the characters.

I have illustrated my invention as applied to a very large or thickmatrix of the display kind, but many changes and variations may be madein the mode of application, and also in its form, which will still becomprised within its spirit. Similarly, the invention may be adapted totype Specification of Letters Patent.

Patentedl eb. 23, 1915.

Application filed March 23, 1914. Serial No. 828,545.

or dies, as. well: as t0v matrices. Generally speaking, I desire it tobe understood that I do not limit myself to any specific form orembodiment, except in so far assuch limitations are specified in theclaims.

The accompanying drawing illustrates the several steps employed in theproduction of the matrix, Figure 1 showing a solid blank with thecharacter punched therein; Fig. 2, the blank with transverse holesdrilled therein; Fig. 3, a section on the line 3-3 of Fig. 2; Fig. 4, aside view with the reducing slots formed therein; Fig. 5, a section onthe line 5-5 of Fig. 4; Fig. 6, a section on the line 6-6 of Fig. 7 andFig. 7, a perspective of the finished matrix.

The matrix X is first formed as a solid blank(Fig. 1) and provided inits edge with the formative character X Transverse pin holes D are thendrilled therein, in the rear of and in a plane intersecting thecharacter X (Figs. 2 and 3). Next the longitudinal reducing grooves orcuts A, of a depth approximating the thickness of the matrix, areformed, leaving the central wall B and the two exterior walls C, andalso the outer portions of the holes D (Figs. 4 and 5). It will be notedthat this operation results not only in weakening the blank, but also inspringing the walls C inwardly and consequently out of parallelism. Tocorrect these difficulties, namely, in order to reinforce the skeletonstructure, and to restore the walls C to their proper spaced relation, Iinsert the strengthening elements E (Figs. 6 and 7) between the outerwalls 0 and the inner wall B, these elements being preferably in theform of solid cylinders or pins E, located in and held in position bythe recesses or notches constituted by the remaining portions of the pinholes D. As a result of this procedure, not only is the matrixlightened, but also given the strength necessary to perform itsfunctions properly.

As previously stated, I have shown my invention only in preferred formand by way of example, and as applied to a specific style of matrix.However, many modifications and alterations therein, and in its mode ofapplication, will suggest themselves to those skilled in the art,without departure from its scope.

Having thus described my invention, its

construction and mode of operation, What I claim and desire to secure byLetters Patent of the United States, is as follows:

1. The type or matrix X formed in its side face with the longitudinalgrooves A, and presenting outer Walls C constituting the edge portionsof the matrix body, and the intermediate Wall B, and provided with theelements E located in said grooves and serving to maintain the Walls inproper spaced relation.

2. The type or matrix X formed in its side face With the longitudinalgrooves A,

each having in its opposing faces cylindrical recesses D, the saidmatrix being provided with the cylindrical reinforcin elements E fittingin the recesses of the grooves A and serving to maintain the outer WallsC in their separated condition. In testimony whereof I have affixed mysignature in presence of two witnesses.

FERGUS F. VILSON.

W'itnesses:

WVILLIAM SALMON, EDGAR H. ALLEN.

Copies of this patent may be obtained for five cents each. by addressingthe Commissioner of Patents,

Washington, D. C.

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